Meteoritical Bulletin: Entry for Northwest Africa 7259

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 1 Aug 2021
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 7259

Basic information

Name: Northwest Africa 7259
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7259
Observed fall: No
Year found: 2011
Country: Morocco
Mass: 73.2 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 355 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 25 May 2012

Writeup

Writeup from MB 100:

Northwest Africa 7259 (NWA 7259)

Morocco

Found: 2010

Classification: HED achondrite (Eucrite, polymict)

Physical characteristics: Half fusion-crusted stone.

Petrography: The texture is typical of polymict eucrite breccias, with diverse basaltic-gabbroic textures represented among clasts. Pyroxenes mostly show typical noncumulate-eucritic exsolution.

Geochemistry: Low-Ca pyroxene (based on 7 analyses) ranges from En₄₈Wo₃to En₃₄Wo₃; high-Ca px (5) from En₃₆Wo₄₄to En₂₉Wo₄₄; plagioclase (9) from An₈₇to An_91.Avg. pyroxene Fe/Mn (wt. ratio) = 29.8.

Classification: Polymict eucrite breccia.

Data from:
  MB100
  Table 1
  Line 1702:

Place of purchase:	Quartzsite, AZ
Date:	2010
Mass (g):	73.2
Pieces:	10
Class:	Eucrite-pmict
Shock stage:	moderate
Weathering grade:	Light
Ferrosilite (mol%):	diverse
Wollastonite (mol%):	bimodal
Classifier:	P. Warren, UCLA
Type spec mass (g):	15.9
Type spec location:	UCLA
Main mass:	Sean Tutorow
Comments:	Submitted by Paul Warren

Institutions
and collections

UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Christophe PICQ

Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 1652 approved meteorites from Morocco (plus 23 unapproved names) (plus 1 impact crater)

Direct link to this page